Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Profitez de cette alternative à Gmail.”
Google Play · 5/5 · 2026-08-12

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 2495260497

Proof data

Record hash (SHA-256): 31f2e40d9c86d51db7c7a2d35e0baf8942ba942948f44247d7f154f4b8ce5ec5
Signature (Ed25519, base64): yxQBTJGuCAzbX6Z5Y1C1xecIVsuhLLiqZS2GbK7OhSNW1i+m0BHnNsxwwjMlMmqcHeMhA9TLQoPPX0Yyi3bTBQ==
Merkle root: c0f03d84ec6a08e9f47227502d608cb4b9559e04dbc44c0c60dd009e5498fd59
Merkle path: ["31f7c8e300c3cd6dca36ef8fa07e84bf521a80d0e259435d2e9408d970935928","c0ec650df93ca87ad592e636f4f6e5f236ad5324b0f12e3718f67c69f1e0c872","a9ad46eacf38963ef1fbe6f8597a414703ca8bf86a7dd8f0f527c36e8d74f7e1","8bb02b3ef05bd745908cdc70dc7e3aca3cee230953452a361245c82d479c6b89","eb3842ee21d2619be3a433f932d41eb01f99c95416a20e3ced7c07130701676a","c68a3d02f98d03cc90db464b35da2b1fe0caea57a819bf830c30737f7b846d61","ba35a13d5e03493dd077d8120afb05a16184a3be103f3c1c99af4ad5b28c90bd","d40df95a0568b01dcddcc20709444eadf6e9a865916189114d3cb8e35372feaf","efe52612c066c73842a5d6e21b961a7fe7922c13f447f115751258851d9b5de6","4dfb828767878a0df14e722b9583dc2d703da86157a24cbf47fe7a8066916e0e","68ab56c8d803941cfe60194584321d2b0d6d3d17050952d088d4fa5501238eaf","3f86b2881208e8e9691972f84de97b213fc2fe65fd090a75dc57e0fe251d6b33","1957d236cf53056b1ca60252c2186d847ebffccfd60d6d58be8dcd8b61e2e273","25ab3670878dfae1375e1b324da09476041ebe2bd7713b9236b40404f8afd0ba","a4d2a95b8c12efe70f0dc5df164839a5ef796b8ba35c8ba29774bce65792792e"]
Anchored: 2026-08-17
Public log entry: search.sigstore.dev, log index 2495260497 · entry 108e9186e8c5677aab72…
Expected log hash: c37699e17d2ce6398bb526dc7ebc97861528e4e938842ba464fce3230eb047fe The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1786937421185","kind":"published-quote","locale":"fr","page":"product:proton/proton-mail/fr","quote":"Profitez de cette alternative à Gmail.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (c0f03d84ec6a…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.